What are some examples of using the signal module in Python?

Can you give me some examples of how to use the signal module in Python?

Sure! The signal module in Python allows you to set handlers for asynchronous events. For example, you can handle signals like SIGINT.

How do I handle a SIGINT signal to gracefully exit a program?

You can use the signal.signal() function to set a handler. Here's a simple example:

import signal
import time

def handler(signum, frame):
    print('Signal received, exiting...')
    exit(0)

signal.signal(signal.SIGINT, handler)

while True:
    print('Running...')
    time.sleep(1)

What other signals can I handle with this module?

You can handle various signals like SIGTERM, SIGHUP, SIGQUIT, and more. Each signal has its own purpose, like terminating a process or notifying it of a hangup.

Can I set a timeout for a signal handler?

Yes, you can use the signal.alarm() function to set a timer that sends a SIGALRM signal after a specified number of seconds.